(19)
(11) EP 0 130 479 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.04.1986 Bulletin 1986/17

(43) Date of publication A2:
09.01.1985 Bulletin 1985/02

(21) Application number: 84107078

(22) Date of filing: 20.06.1984
(84) Designated Contracting States:
CH DE FR GB IT LI NL SE

(30) Priority: 30.06.1983 US 509561

(71) Applicant: GENERAL ELECTRIC COMPANY
 ()

(72) Inventor:
  • Pelc, Norbert Joseph
     ()

   


(54) Method of projection reconstruction imaging with reduced sensitivity to motion-related artifacts


(57) A method is provided for imaging a transverse slice of an object with reduced sensitivity to image artifacts due to object motion during the scan. The method utilizes projection measurements corresponding to at least a 180°C scan of the slice. The measurements are taken sequentially for views that are adjacent in angle such that measurements which are at the extremes of the scan angle are nevertheless measured at points close in time, reducing inconsistencies therebetween. The method is applicable to a number of modalities utilizing parallel-ray and fan-beam geometries, such as NMR and ultrasound, respectively.







Search report